红客防线--官网(攻防创新实验室)

安装SSH服务
#apt-get install openssh-server
编辑SSH端口
#vi /etc/ssh/sshd_config
确认以下三个部分（如果前面有“#”，则去掉；如果后面的判断条件不一致，则按下面的调整。）
Port xxxxx   //修改端口为5位数及以上的未使用的端口，
例：Port 22222
PermitRootLogin yes   //如果原来是no或者without-password，就改成yes
PermitEmptyPasswords no   //如果原来是yes，就改成no
保存后，重启ssh服务
service ssh restart

第一步
vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto em1
iface em1 inet static
        address 192.168.0.89
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.254
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 202.96.128.86 202.96.128.166
        dns-search nb-guangzhou

第二步
vi /etc/resolv.conf
nameserver xxx.xxx.xxx.xxx
第三步
vi /etc/resolvconf/resolv.conf.d/head
nameserver xxx.xxx.xxx.xxx
第四步
/etc/init.d/networking restart